User Manual

Chapter 7: System Setup 97
Configuring Default Sample Rate
Setting in Hardware Setup
The Sample Rate setting in the Hardware Setup di-
alog determines the default sample rate when you
create a new session. This setting is available only
when there is no session open. Otherwise, the cur-
rent session sample rate is displayed, but cannot be
changed.
With HDX and HD Native hardware, you can
change the default Sample Rate in the Hardware
Setup, or in the Playback Engine.
On other Pro Tools systems, you can only change
the default sample rate in the Hardware Setup or
using the control panel for third-party audio inter-
faces.
To change the default Sample Rate in the
Hardware Setup:
1 Choose Setup > Hardware Setup.
2 Select the sample rate from the Sample Rate
pop-up menu.
3 Click OK.
Configuring Clock Source
The Pro Tools Hardware Setup lets you select the
Clock Source for the system.
Internal If you are recording an analog signal
directly into Pro Tools, you will usually use the
Pro Tools
Internal clock source.
External If you are transferring material into
Pro Tools from an external digital device, or if you
utilize a common house clock signal, you will syn-
chronize Pro Tools to that digital device or com-
mon signal.
Depending on your audio interface, external
options can include
AES/EBU [Encl], S/PDIF,
Optical [Encl], AES/EBU 1–8, TDIF, ADAT, and
Word Clock. For details, see the guide for your au-
dio interface.
To select the Clock Source:
1 Choose Setup > Hardware.
2 Choose the clock source from the Clock Source
pop-up menu.
3 Click OK.
With HDX and HD Native hardware, the
Sample Rate setting can affect the number
of available voices.
You can set the sample rate when creating a
new Pro Tools session by selecting a different
sample rate in the New Session dialog.
Changes made to Clock Source in the Session
Setup window are reflected in the Hardware
Setup window.
Your digital input device must be
connected and powered on for Pro Tools to
synchronize to it. If your input device is not
powered on, leave the Clock Source set to
Internal.